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<?php function getDigest( $password, $data ) { $firstEncoding = base64_encode(hash('sha512', $data, true)); $withPass = $firstStep . $password; return base64_encode(hash('sha512', $withPass, true)); } $password= 'PASSWORD'; $xml = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?><payment><type>PAY_PAGE_AUTH_CAPTURE_INITIALISATION</type><mer chant><merchantid>10000001</merchantid><accountid>20000001</accountid></merchant>< customer><customerid>1</customerid><email>test@test.com</email><name>Test Client</name><dateofbirth>03042000</dateofbirth><address><addressline1>123 Street</addressline1><addressline2></addressline2><city>Guildford</city><province>Surrey</ province><postcode>GU2 2YG</postcode><country>GBR</country></address><mobilenumber>01234123123</mobilenu mber></customer><transaction><amount>1000</amount><currency>USD</currency><mercha ntref>3DIIWxxbGjhPR7g0OSk8</merchantref></transaction><url><responseurl>https://localho st:8443/response</responseurl></url></payment>'; $first = 'ClKm6nuJYhM29fpYYf1zv2mJ4WdS6DZ6RMwvg8BCiCvLA3Nv1HtKh1YK30F1ljNOVWGEcuc9Mmim2DIVI4s+2w=='; echo $first.PHP_EOL; echo $first.$password.PHP_EOL; $second = base64_encode(hash('sha512', $first, true)); echo $second.PHP_EOL;

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